I might also check out HighCountryRoses in CO and Freedom Garden in Ohio, both of which specialize in Z5 roses. An email or call will help you with your decisions. There are a few others, but these two have a huge selection. Im Z6 and those with no die back to --7F include Summer Romance Eglantyne, Pretty Jessica, Ballerina, WindChimes, Pink Pet, the above mentioned Quietmess, Aloha, Zaide and Jacque Cartier. The jury is still out on a few newer ones such a The Forever Rose and Moonlight in Paris. Hope this helps. Youve been given a good start above.😉